TNT Bicycles Double-Bolt BMX Seat Post Clamp - 31.8mm (1-1/4") & 28.6mm (1-1/8") - Silver 170mm This rim only works with

This rim only works with OS-20 (451mm) tires -- not standard 20" (406mm) tires

1 Freewheel is constructed of chromoly steel and has 12 degree engagement

harden or become slick with age

Please make sure you are ordering the correct size before checking out

The brake arms are designed to maximize stiffness and save weight without adding excessive cost

TNT Bicycles Double-Bolt BMX Seat Post Clamp - 31.8mm (1-1/4") & 28.6mm (1-1/8") - Silver 170mm This rim only works withThe TNT Double Bolt Seat Post Clamp is an anodized aluminum seat clamp with a classic design. The clamp is 1 1 4" (31. 8mm) and includes a built in shim for use with 1 1 8" (28. 6mm) seatposts. The TNT logo is laser etched on the clamp. Size: 1 1 4 (31. 8mm) or 1 1 8" (28. 6mm) with shim Color: Silver